Method of repairing coke-oven walls.



A. H. CHALMERS. METHOD OF BEPAIRiNG COKE 'OVEN WALLS.

APPLICAHON FILED MAY I. 1916.

1,244,467. Patented 001:. 30, 1917.

, m rt an on "i reenter;

Application filed may 1, 3.91%:

Be it known that I, ALBERT H. CHALMERS, a citizen of the United States, and resident of Fuirfield, in the county of Jeii'erson and State of Alabama, have invented certain new and useful Improvements in Methods of Repairing Coke-ven ells, of which the following is e specification.

My invention relates to the art of maintaining by-product coke oven Wells and hes particular reference to a novel method for use in connection therewith.

Aiter certain periods of operation, coke oven Wells disintegrate so that they require repairs. Often local conditions in the cornbustion chambers bring about u fusion of the briclcwells which make a replacement of brick imperative, Walls at times are pushed out of ulineinent, either by expending of coal, explosions in combustion chenn hers or by careless operation of the pusher so that entire oven walls must be rebuilt the full length. of the oven. in all these cases repairs to coke oven Walls are a difficult undertaking, and if not properly done, often result in the total loss of the respective oven.

The method heretofore in Vogue consisted in supporting the roof of the even by wooden or iron beams, placed in holes out through the oven Walls neur'the roof and held in place by studding erected on the floor of the ovens along the wells of the adjacent combustion chamber. This method required that the oven about to be repaired had to be cooled down so that men could Work'inside the oven for a considerable period at a time and so that the Wooden supports would not dry out and catch lire from the heat or" the adjacent fines. Such cooling down requires often from five to ten days if care to be taken to prevent shrinkage creeks i :curring in the brick Work about to be repaired, Well as that of the adjacent combustion chambers. This studding, usually of the dimension 6x6 inches would not permit the workmen proper access to their worn, as the ovens are only 19 inches wide at best allowing but 12 inches space intvhich the work man was forced to lnybriclc. After partial completion, t-h studs must be removed and the supports oi the root Work cut oil and taken out and the open spaces filled in. During the removal of the studding, parts of the Wells remain unsupported and Will not permit of filling the open spaces Without leaving large joints in the brick work.

In runny cases such supporting requires the spli t ng of shapes with the addition: .t joints necessary to close up the opening.

Repairs to the oven floors cannot be mode 2 with the old method Without into the adjacent oven wells for supportin the timber or iron. beams! By the use oi. my novel method. all brick i ivorlrwhich can be left in an oven under repair is supported from the top, which leaves all the room available for the sorta-nee. No large holes have to be out to supper roof or parts of the Well not ,reqiiir pairs, nor is it necessary to leave hit" in the half-finished structure. Split shapes unnecessary. she iloor is it silne utnn place end may be repaired out cutting hole into the wells. The worl-tman has the one-.1 space oi the oven svnilable for performing his duties. it is not necessary with this method to W lt until the heat of a defective Wall is reduced to permit workmen to enter the oven before sup ports can be inserted, but this can be done While the oven. is yet under considerable heat, and with the new method the shrink-- plac during the process of cooling can be dul ollowei'l up and sl'irinlrege cracks to some extent prevented by to ring up the supports by means of screws or Wedges.

The method understood by ing drawings, in nor l- Figure 1 is a tro reverse section through it plurality of Toy-product coke ovens the tion chamber of apparatus will be better snce to the accompanyremoved i in the novel his V r r 2 is s we,

v; seen that l ings, it "will be led a fragment oi:

2, battery of 10;" coke ovens in Fig. 1 the combustion 1 1 m q I; 5 l :,i-

+1 a k g enuresis o. l-l-CLL',l1 (Lu one to L chenibe be; 5 indicated at 11, 12, and M. It will he noted that in Fig. 1 the walls composing the combustion chamber have 11% been removed, either by accident or through deterioration it, therefore, becomes necessary to restore such walls or to lose the use of the two coking chambers 12, 13. These walls are re-built in the following manner: On suitable supports 15, at the top of the furnace, is mounted a beam 16. This beam in the present instance is shown as composed of two angles placed back-to-back and serves to support a rod 17 through the medium of a large washer or plate l8and -a nut 19. l "his;-rod projects downwardly through a filggpening 20, a plurality of which are provi ed; in each combustion chamber throfigmt the, length thereof. Plates 21 iare deated to underlie the brickwork 22, compmingthe upper portion of the combust ionichamber walls, one platebcing placed 'T onieach side of the rod 17 Akey 23 underlies the plates 21 this key passing through a suitable opening in' the lower end 21} of the rod 17. It will be seen that this arrangement may be installed while the furnaceisstill quite warm. As shown in Fig. 2,.theplates 21 may extend for a considerable distance underneath the brickwork if tend being governed by their ability to support the brickwork without bending.-

It will be understood, of course, that a plurality. of theserods are provided where the entire wall is to be re-built. the. upper end of the rod serves to exert the proper force and further enable the taking up of shrinkage as 'the wall cools. Of

ofeourse the same as heretofore described.

course, it will be understood that other expedients may be employed for taking up this shrinkage.

- In the construction-of Fig. 5 the hanger .rod is supplemented by a hook 24, which will be found to be useful in some instances. The action in supporting the brickwork is The method of removing an oven wall for repair is accomplished in the following manner: Over the two ovens adjacent to the ones under repair the supports are placed connected by the beam 16. From this beam a hanger 11 is suspended, the threaded upper end and the nut thereon serving to ads just the hanger primarilyand to take up shrinkagefrom cooling. The hanger is projected through an opening inv the brickwork such as inspection or sight openings, charging holes, etc., the bottom of the hanger being provided with an eyeor book as conditions may indicate to. be the most suitable. If. a hotoven is to be repaired, the bar or hanger may be formed by a jointed member which will fold alongside the hanger when passing through the hole,

desired, the distance which the plates ear- The nut on.

and which will spread out and underlie the brickwork when pulled into positlon. Or-

. clinarily plates or straps 21 are located underneath the brickwork and are held in place bythekey 23. The key can very readily be inserted by the removal of but half a brick shape and on completion of repairs will not require a hole larger than one shape for removal. On the completion of the repairs one after another of the suspension hangers are withdrawn, leaving but a very small opening to be filled while the roof is unsupported; in fact, this opening is only the In this manner the re-;

size of one shape. pairs can be made with the same allowances for jolnts as are contained in the original work and without cutting the shapes to fill in holes where supports were used other than as herein described.

It is obvious, of course, that the method may be carried out by a mechanism other than herein disclosed and I do not therefore wish to be limited to the apparatus or the-exact steps herein referred to.

I claim:

Y 1. The method of repairing. an injured or. defective wall of a by-product coke oven:

. leading to combustion chambers in the walls which consists in supporting a beam above the roof of the furnaria and upon the two walls adjacent to the one to be repaired, suspending a supporting member through one of the aforesaid openings in the roof, to an opening beneath the top of the combustion chamber in the wall to be repaired, supporting said top of the combustion chamber by said supporting member, repairing the desired wall and removing said supporting member.

Signed at Fairfield, Ala, this 25th day of Apl, 1916.

ALBERT H. GHALMERS. Witnesses:

H. E. DALBEY,

W. B. THORNBERRY. 

